F.theta. lens and image apparatus using the same
Fabrication of integrated acoustic ink printhead with liquid lev
Facet reflectance correction in a polygon scanner
Facsimile apparatus
Facsimile apparatus having heat fixation device
Facsimile apparatus with reciprocating printing bar
Facsimile cassette with wire electrode
Facsimile copy medium
Facsimile print out system employing an ink jet system printer
Facsimile receiver having movable printing bar
Facsimile recorder
Facsimile recording stylus
Facsimile stylus assembly
Fanfold paper transport
Fastening and connecting arrangement for piezoelectric driving e
Fault detection and compensation circuit for ink jet printer
Fault detection circuit for a thermal print head
Fault detection device for thermal printing head heating circuit
Fault-tolerant dot-matrix printing
Feed for thermal printing ribbon